Category 4 seed treatment Exam |46 Questions and
Answers
Why are micronutrients and nitrogen fixing inoculants (rhizobium) NOT considered seed
treatments? - -They do not perform a pest control function
-Pesticides to protect stored food and grain are considered ___________ rather than seed
treatment - -Grain treatment
-IPM - -Integrated Pest Mgmt
-Fungus causing loose smut of wheat is born within the seed embryo. It cannot be
controlled with contact fungicide. It requires _____________ - -Systemic Fungicide
-Non-systemic fungicide and insecticide form: - -Chemical barrier over the surface of the
germinating seed
-An example of a soil borne pathogen: - -Pythium
-What can protect young plants from root rot? - -Systemic fungicides and biological
treatments
-Typically, how long do seed treatments last beyond planting? - -10-14 days
-Pesticide seed treatment breaks down most rapidly in this environment: - -Warm moist
conditions
-Several insects and pathogens use __________ as a reservoir to survive on in the off season -
-Volunteer crops
-Fungi - -Small organisms made of filaments called hyphae
-Fusarium on soybeans uncommon unless: - -Stress due to cool dry soils
-Pythium and phytophthora are called water molds because - -They produce a swimming
spore when soil is wet and soft rot the seed
-Stewart's bacterial wilt is spread by - -Foliage feeding corn flea beetle. Most common in
sweetcorn
-Incomplete insect metamorphosis has three life stages: - -1 egg
2 nymph
3 adult
-complete insect metamorphosis - -1 egg
Answers
Why are micronutrients and nitrogen fixing inoculants (rhizobium) NOT considered seed
treatments? - -They do not perform a pest control function
-Pesticides to protect stored food and grain are considered ___________ rather than seed
treatment - -Grain treatment
-IPM - -Integrated Pest Mgmt
-Fungus causing loose smut of wheat is born within the seed embryo. It cannot be
controlled with contact fungicide. It requires _____________ - -Systemic Fungicide
-Non-systemic fungicide and insecticide form: - -Chemical barrier over the surface of the
germinating seed
-An example of a soil borne pathogen: - -Pythium
-What can protect young plants from root rot? - -Systemic fungicides and biological
treatments
-Typically, how long do seed treatments last beyond planting? - -10-14 days
-Pesticide seed treatment breaks down most rapidly in this environment: - -Warm moist
conditions
-Several insects and pathogens use __________ as a reservoir to survive on in the off season -
-Volunteer crops
-Fungi - -Small organisms made of filaments called hyphae
-Fusarium on soybeans uncommon unless: - -Stress due to cool dry soils
-Pythium and phytophthora are called water molds because - -They produce a swimming
spore when soil is wet and soft rot the seed
-Stewart's bacterial wilt is spread by - -Foliage feeding corn flea beetle. Most common in
sweetcorn
-Incomplete insect metamorphosis has three life stages: - -1 egg
2 nymph
3 adult
-complete insect metamorphosis - -1 egg
